Rolls for making terne plates



Patented Apr. [8, I899.

T. WILLIAMS.

ROLLS FOR MAKING TEBNE PLATES.

(Application filed on 21, 1898.) (No Model.)

IN VE/VTOI? A FOB/VH5 m: uonms PETERS ca. FHOTQ-UTHCL. WASHINGTON n. c

NITED STATES PATENT THOMAS WILLIAMS, OF OANNONSBURG, PENNSYLVANIA.

ROLLS FOR MAKING TERNE PLATES.

SPECIFICATION forming part of Letters Patent No. 623,389, dated April18, 1899. Application filed October 21, 1898. Serial No. 694,242. (Nomodel.)

T0 at whom it; may concern:

Be it known that I, THOMAS WILLIAMS, a citizen of the United States ofAmerica, residing at Cannonsburg, in the county of l/Vashington andState of Pennsylvania, have invented certain new and useful Improvementsin Rolls for Making'lerne Plates, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to certain new and useful improvements in rolls formaking terne plates.

The object of my invention is to provide a series of rolls which areadapted to be arrangedwithin the pot containing the alloy and oil orgrease, having their periphery grooved, and owing to said grooves formedon'the rolls the alloy is evenly distributed upon the terne-plate whilethe same is passing therethrough.

A further object of my invention is to provide a suitable regulatingmeans which is suitably adapted to operate against the rolls to allowthe coating of the alloy upon the plates to be made of differentthicknesses. The difficulty heretofore in the man ufactured terne platesWhile passing through the series of rolls was that the plate would becoated in an uneven manner, thereby making the same thicker at differentparts and also rough. I find that by grooving the rollers as shown theplate as it leaves the rolls will be of uniform thickness, therebyobviating the heretofore-mentioned defects which occur in themanufacture of the terne-plate.

My invention therefore consists in providing a series of rolls withsuitable grooves, the arrangement of which will be herein after morefully described.

Briefly described, my invention consists in I the arrangement of anupper and lower series of rolls in pairs having suitable grooves formedon theirperiphery, these grooves being continuous and arranged inopposite directions to the indentations of the adjacent rolls, andsuitable regulating means operating against the rolls for extending orclosing the same against the plates as they pass therethrough.

My invention finally consists in the novel arrangement of partshereinafter more specifical ly described, and particularly pointed outin the claims hereunto appended.

In describing the invention in detail referonce is had to theaccompanying drawings, forming a part of this specification, whereinlike numerals and letters of reference indicate corresponding partsthroughout the several views thereof, and in which- Figure 1 is alongitudinal sectional view of the common form of apparatus used forcoating terne plates, showing the position of my improved rolls and theregulating means therefor. Fig. 2 is a top plan View of the upper rolls.Fig. 8 is a top plan view of a portion of the lower rolls. Fig. 4 is'alongitudinal sectional view of a portion of one of the lower rolls. Fig.5 is a cross-sectional view of one of the lower rolls.

Referring now to the drawings by reference-numerals and which forillustration is shown the ordinary apparatus used for the coating ofterne plates, 1 indicates the pot containing the alloy of lead or tinand beneath which is arranged. the fire-chamber 2.

3 indicates the passage formed by arranging within the pot a pair ofcurved plates 4 and 5, which are adapted to coincide with theoutlet-opening 6, formed in one side of the pot 1. The plates 4 and 5are suitably apertured to allow the alloy to enter the passage 3 and aresecured to the walls of the pot by any suitable means, as at 7.

Connected to the pot 1 by means of the passage 8 is a pot 9, whichcontains the alloy A and the grease or oil B. The arrangement of thisoil and alloy is the same as in ordinary devices of this character. Thispassage 8 is formed by a pipe 10, which is cast integral with the pots 1and 9, as at 10 10. The pot 9 is provided with an ordinary fire-chamber11, arranged beneath the same. Arranged within pot 9 are a pair ofcurved plates 12 and 14. These plates form a passage 15, and they aresimilar in construction to the curved plates 4 and 5, being alsoperforated to allow the alloy and grease or oil to enter the passage 15.I arrange within the pot 9, on each side thereof, a pair of housings 16.(Only one shown.) These housings are adapted for supporting the rolls,regulating mechanism therefor, and curved plates 12 and 14. They aredownward within the pot,'as shown.

also removably mounted within the pot 9 and are cut away at their top toallow the operation of the regulating-springs, which will be hereinaftermore fully described. Suitably journaled in any manner in the housings16 are the upper rolls 17 and the lower rolls 18, which are grooved, asat 19, in the upper rolls and at 20 in the lower rolls. It will beobserved thatlthese grooves are continuous, and they are arranged inopposite directions, as shown. I find that by grooving these rolls theupper series approximately to a scale twelve to an inch and the lowerones approximately to a-scale of seven to an inch the operation of therolls upon the terne-plate while it is passing between the same willgive the uniform surface thereto.

For regulating the rolls to increase or decrease the coating of alloy ofthe terne plates while passing therethroughIsecure to one side of therolls a pair of elongated steel springs 20 20 which are bent at rightangles and extend The spring 20 is pivoted, as at 24, and the one endthereof is apertured and operates on a screwthreaded rod 22, thedownward movement thereof being arrested by means of the nut 23,operating on the rod 22. The spring 20 is pivoted, as at 24, and the oneend thereof is apertured and operates on the screw-threaded rod 25, thedownward movement thereof being arrested by the nut 26 operating on therod 25. It is readily apparent on raising the end of the springs therolls will be brought together and a thinner coating of alloy willremain on the plate when the same has passed therethrough than if therolls were forced farther apart by the lower end of the springs. Therolls are so arranged in the pot that the lower pair is in the oil orgrease and about six inches above the alloy, while the upper pair is ina portion of the grease or oil and about twelve inches above the alloy.

By the helical grooves, which are continuous and which are formed on theperiphery of the rolls, and by the arrangement of the grooves on theupper rolls being, as heretofore stated, about almost double the numberto the inch as of the lower rolls the operation of the same upon theplate will do away with of my improved grooved rolls that the defectshave been caused by the smoothness of the rolls.

Suitable operating mechanism is employed for operating the rolls, whichit is not deemed necessary to illustrate or describe.

It will be noted that various changes may be made in the details ofconstruction without departing from the general spirit of my invention.

Having thus fully described myinvention, what I claim as new, and desireto secure by Letters Patent, is-

1. In an apparatus for making terne-plate, an upper and lower pair ofhelically-grooved rolls, the groove of the upper pair of rolls being ofa less pitch than the groove of the lower pair, and means for regulatingthe said rolls whereby diiferent thicknesses of coating may be appliedto plates, substantially as set forth.

2. In an apparatus for making terne-plate a pair of upper rolls having acontinuous helical groove formed on the periphery thereof at the scaleapproximately twelve to an inch, a pair of lower rolls having acontinuous helical groove formed on their periphery at the scaleapproximately seven to an inch, and means for regulating the said rollswhereby different thicknesses of coating may be applied to plates,substantially as herein shown and described.

In testimony whereof I affix my signature in the presence of twowitnesses.

THOMAS WILLIAMS.

Witnesses:

JOHN N OLAND, N. L. BoGAN.

